echebbi/etos

Generate Scala code from ECore models with Acceleo

ETOS

ETOS, for Ecore TO Scala, is an Acceleo project that generates Scala code from an Ecore model. More specifically, it relies on the .genmodel file.

Current features

ETOS is currently able to generate:

• classes,
• traits,
• fields,
• methods.

It also handles inheritance and ScalaDoc.

Not stable!

Since the work is still in progress, the project will change in the near future.

Use

Once etos has been installed into Eclipse IDE (see below), merely right-click on the .genmodel file, select the Acceleo Model to Text menu item, then Generate Ecore to Scala.

The generated Scala files should be in the src-gen folder.

Installation

As of now, no update site is available to download etos directly from Eclipse IDE. However, thanks to Maven, you can easily build your one.

Prerequisite

Maven 3 must be available in the system. It can be download from maven.apache.org.

Generate an update site

First, clone this repository:

git clone https://github.com/KazeJiyu/etos

Then launch Maven:

mvn install

etos' update site should have been generated in releng/fr.kazejiyu.etos.pim.ecore.gen.scala.updatesite/target/repository.

Install etos into Eclipse IDE

From Eclipse IDE, go to Help > Install New Software....

Click Add... > Local.

Select /path/to/etos/releng/fr.kazejiyu.etos.pim.ecore.gen.scala.updatesite/target/repository.

Check the runtime and IDE features, then click to Finish.

etos's Issues

etos should generate imports

At the moment, etos does not generate the imports alongside a class / trait definition.

This is annoying, in particular when generating multiple packages with references from one to another.

The imports should be easily findable by checking :

• attributes' type,
• references' type,
• operations' return type,
• operations' attributes' return type.

ETOS lacks tests

Acceleo generator must be tested to ensure integrity and avoid regression.

Some useful links:

• Some thoughts on testing Acceleo generators
• Acceleo Maven samples

Unable to build target in updatesite using `mvn install`

I am trying to create the update site as instructed in Readme file. However, on my Mac OSX, I get an error at the end and the target is not build.

[DEBUG] No solution found because the problem is unsatisfiable.: [Unable to satisfy dependency from org.eclipse.e4.rcp.feature.group 1.6.1.v20170928-1359 to org.eclipse.equinox.p2.iu; org.eclipse.equinox.launcher.gtk.linux.x86 [1.1.550.v20170928-1359,1.1.550.v20170928-1359].; Unable to satisfy dependency from org.eclipse.e4.rcp.feature.group 1.6.1.v20170928-1359 to org.eclipse.equinox.p2.iu; org.eclipse.swt.gtk.linux.x86 [3.106.1.v20170926-0519,3.106.1.v20170926-0519].; Unable to satisfy dependency from org.eclipse.e4.rcp.source.feature.group 1.6.1.v20170928-1359 to org.eclipse.equinox.p2.iu; org.eclipse.swt.gtk.linux.x86.source [3.106.1.v20170926-0519,3.106.1.v20170926-0519].; Unable to satisfy dependency from org.eclipse.jdt.core 3.13.100.v_OTDT_r261_201712031505 to org.eclipse.equinox.p2.iu; org.eclipse.objectteams.otdt.core.patch.feature.group [2.0.0,3.0.0).; Unable to satisfy dependency from org.eclipse.jdt.core 3.13.101.v_OTDT_r262_201803031341 to org.eclipse.equinox.p2.iu; org.eclipse.objectteams.otdt.core.patch.feature.group [2.0.0,3.0.0).; Unable to satisfy dependency from org.eclipse.jdt.core 3.13.102.v_OTDT_r262_201804012017 to org.eclipse.equinox.p2.iu; org.eclipse.objectteams.otdt.core.patch.feature.group [2.0.0,3.0.0).; Unable to satisfy dependency from org.eclipse.swt 3.106.1.v20170926-0519 to org.eclipse.equinox.p2.iu; org.eclipse.swt.gtk.linux.x86 [3.106.1.v20170926-0519,3.106.1.v20170926-0519].; No solution found because the problem is unsatisfiable.]
[ERROR] Cannot resolve target definition:
[ERROR]   Software being installed: org.eclipse.sdk.feature.group 4.7.1.v20171009-0537
[ERROR]   Missing requirement for filter properties ~= $0: org.eclipse.e4.rcp.feature.group 1.6.1.v20170928-1359 requires 'org.eclipse.equinox.p2.iu; org.eclipse.equinox.launcher.gtk.linux.x86 [1.1.550.v20170928-1359,1.1.550.v20170928-1359]' but it could not be found
[ERROR]   Cannot satisfy dependency: org.eclipse.platform.feature.group 4.7.1.v20171009-0410 depends on: org.eclipse.equinox.p2.iu; org.eclipse.rcp.feature.group [4.7.1.v20171009-0410,4.7.1.v20171009-0410]
[ERROR]   Cannot satisfy dependency: org.eclipse.rcp.feature.group 4.7.1.v20171009-0410 depends on: org.eclipse.equinox.p2.iu; org.eclipse.e4.rcp.feature.group [1.6.1.v20170928-1359,1.6.1.v20170928-1359]
[ERROR]   Cannot satisfy dependency: org.eclipse.sdk.feature.group 4.7.1.v20171009-0537 depends on: org.eclipse.equinox.p2.iu; org.eclipse.platform.feature.group [4.7.1.v20171009-0410,4.7.1.v20171009-0410]
[ERROR]
[ERROR] Failed to resolve target definition /Users/in-puneet.patwari/Documents/Workspace/TMT/etos/releng/fr.kazejiyu.etos.pim.ecore.gen.scala.target/fr.kazejiyu.etos.pim.ecore.gen.scala.target.target: See log for details -> [Help 1]
org.apache.maven.MavenExecutionException: Failed to resolve target definition /Users/in-puneet.patwari/Documents/Workspace/TMT/etos/releng/fr.kazejiyu.etos.pim.ecore.gen.scala.target/fr.kazejiyu.etos.pim.ecore.gen.scala.target.target
    at org.eclipse.tycho.core.maven.TychoMavenLifecycleParticipant.afterProjectsRead (TychoMavenLifecycleParticipant.java:100)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:264)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:956)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:288)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:192)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:62)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:566)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:282)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:225)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:406)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:347)
Caused by: org.eclipse.tycho.core.shared.BuildFailureException: Failed to resolve target definition /Users/in-puneet.patwari/Documents/Workspace/TMT/etos/releng/fr.kazejiyu.etos.pim.ecore.gen.scala.target/fr.kazejiyu.etos.pim.ecore.gen.scala.target.target
    at org.eclipse.tycho.p2.target.TargetDefinitionResolver.resolveContent (TargetDefinitionResolver.java:103)
    at org.eclipse.tycho.p2.target.TargetDefinitionResolverService.resolveFromArguments (TargetDefinitionResolverService.java:70)

Please let me know if I am doing any mistake.